6533b871fe1ef96bd12d2571

RESEARCH PRODUCT

High-order methods for the simulation of hydromagnetic instabilities in core-collapse supernovae

Ewald MüllerTomasz RembiaszPablo Cerdá-duránM. Angel AloyM. Obergaulinger

subject

PhysicsAstronomy and Astrophysics010103 numerical & computational mathematics01 natural sciencesInstabilityRiemann solverNumerical resistivity010305 fluids & plasmasComputational physicsRoe solverSupernovasymbols.namesakeRiemann problemSpace and Planetary Science0103 physical sciencesTearingsymbols0101 mathematicsMagnetohydrodynamics

description

AbstractWe present an assessment of the accuracy of a recently developed MHD code used to study hydromagnetic flows in supernovae and related events. The code, based on the constrained transport formulation, incorporates unprecedented ultra-high-order methods (up to 9th order) for the reconstruction and the most accurate approximate Riemann solvers. We estimate the numerical resistivity of these schemes in tearing instability simulations.

https://doi.org/10.1017/s1743921311007551